1st pregnancy

Hi! So I have a little bit of a concern. This is my 1st pregnancy so I'm just all around nervous. I have been under a tremendous amount of stress lately. And two weeks ago I felt soo many signs of pregnancy. Now two weeks later it just stopped. I feel almost normal. I'm nervous something might be wrong with my baby. I'm nervous because of the amount of stress I have been under. Is this normal or should I really be concerned?